O. Hovorka et al., PREMATING BEHAVIOR OF BOMBUS-CONFUSUS MALES AND ANALYSIS OF THEIR LABIAL GLAND SECRETION, Journal of chemical ecology, 24(1), 1998, pp. 183-193
Premating behavior in the bumblebee Bombus confusus was studied. Visua
l searching for females is not the only premating strategy of this spe
cies, as was believed earlier. Males of B. confusus have a normally de
veloped labial gland and its secretion is used to mark a perch from wh
ich they visually search for females. The labial gland secretion conta
ins geranylcitronellol and (Z)-9-octadecenyl acetate as the main compo
nents.